What can I do throughout highschool to help me get into USMA?

I'm in 8th grade and soon to join Niles West High School. Throughout my life I wanted to be someone who is different and not who everyone wants to be (rich doctors). So I decided that I want to take up a military career. But I have no idea what to do really in high school to help me get in. I have the basics planned like do good on SAT/ACTs, get into AP classes, Track & Field, Soccer, Speech Team, Student Government. So what are some other things I can do?